/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.jena.rdf.model.test;

import org.apache.jena.rdf.model.AnonId;
import org.apache.jena.shared.impl.JenaParameters;
import org.apache.jena.test.JenaTestBase;
import org.junit.Assert;
import junit.framework.TestSuite;

/**
 * Test for anonID generation. (Originally test for the debugging hack that switches
 * off anonID generation.)
 */
public class TestAnonID extends JenaTestBase {

    /**
     * Boilerplate for junit. This is its own test suite
     */
    public static TestSuite suite() {
        return new TestSuite(TestAnonID.class);
    }

    /**
     * Boilerplate for junit
     */
    public TestAnonID(final String name) {
        super(name);
    }

    /**
     * Check that anonIDs are distinct whichever state the flag is in.
     */
    public void doTestAnonID() {
        final AnonId id1 = AnonId.create();
        final AnonId id2 = AnonId.create();
        final AnonId id3 = AnonId.create();
        final AnonId id4 = AnonId.create();

        JenaTestBase.assertDiffer(id1, id2);
        JenaTestBase.assertDiffer(id1, id3);
        JenaTestBase.assertDiffer(id1, id4);
        JenaTestBase.assertDiffer(id2, id3);
        JenaTestBase.assertDiffer(id2, id4);
    }

    /**
     * Check that anonIDs are distinct whichever state the flag is in.
     */
    public void testAnonID() {
        final boolean prior = JenaParameters.disableBNodeUIDGeneration;
        try {
            JenaParameters.disableBNodeUIDGeneration = false;
            doTestAnonID();
            JenaParameters.disableBNodeUIDGeneration = true;
            doTestAnonID();
        } finally {
            JenaParameters.disableBNodeUIDGeneration = prior;
        }
    }

    /**
     * Test that creation of an AnonId from an AnonId string preserves that string
     * and is equal to the original AnonId.
     */
    public void testAnonIdPreserved() {
        final AnonId anon = AnonId.create();
        final String id = anon.toString();
        Assert.assertEquals(anon, AnonId.create(id));
        Assert.assertEquals(id, AnonId.create(id).toString());
    }

}
